Have you ever noticed that the teachers and mentors that have the most knowledge are usually those that are most generous in sharing it? It’s always the teachers with very little knowledge that guard it jealously, it seems to me. If you are learning to do anything, it’s always worth seeking out a teacher with such a depth of experience that sharing some of it with you doesn’t even begin to tap the true extent of the knowledge they have. They have nothing more to prove to anybody.
By the same token, you should always be generous with your own knowledge, when teaching others, because you can always get more. The amount of knowledge and experience that you can gain is largely infinite. It never runs out. When somebody guards their knowledge jealously, it’s a sure sign that they are not that good at getting more knowledge. That surely places the knowledge they do possess under some doubt. How reliable a teacher are they, if they have such difficulty in gathering knowledge?
Sometimes, the things that pupils struggle most with are the things that are most facile and obvious to a skilled and experienced teacher. It’s morally unjustifiable to permit a student to continue to struggle and refuse to share the benefit of your wisdom, when asked. That is not to say that teachers should didactically ram information down the throats of their charges. Knowledge must be sought by a pupil, if it is to have any value to them at all. Knowledge volunteered is often knowledge that isn’t retained.
There is a certain existential joy in sharing your knowledge. It means that it will be passed down and live a life of its own. That’s a beautiful thing. It means it won’t be lost to the ravages of time, when you are dead and gone. If you care about what you know and care about it surviving, there is no more reliable method of preserving it for posterity than passing it on to a willing and receptive pupil.
Everybody, no matter what field they in, actually loves to be creative and to use their creative powers to achieve their working goals. There is no greater gift you can give than the tools, resources, techniques and methods that somebody needs to express their creativity, as well as the opportunity to be creative.
If you are an artist and you have the chance to teach anybody what you know, especially if they are enthusiastic learners, be generous of spirit with your knowledge. It does you good and does everybody good.